Prefabricated Substation Layout Checklist

Engineering Intent

Prefabricated substations combine MV switchgear, transformer and LV switchgear, so layout must be coordinated before quotation.

This article is written for engineers, EPC buyers and procurement teams who need to turn prefabricated substation layout into a clear technical request instead of a vague product inquiry.

Key Selection Data

Item	Data to Confirm
Check 1	MV room, transformer room and LV room layout
Check 2	Transformer capacity and type
Check 3	Cable entry and ventilation
Check 4	Outdoor enclosure size

Standards and Evidence to Request

• IEC 62271 switchgear references
• IEC 60076 transformer references
• Project civil layout

For project approval, request a technical datasheet, outline drawing, wiring or terminal diagram where applicable, routine test report and nameplate information before shipment.

Common Specification Mistakes

• Transformer selected separately from enclosure ventilation
• No cable entry direction
• No maintenance door clearance

RFQ Checklist

1. Attach single-line diagram
2. Confirm transformer capacity
3. Provide site layout
4. State enclosure material and color

Related Product Paths

• Prefabricated Substations
• YB Substation
• Power Transformers

Ziyao Power can review the single-line diagram, load schedule, panel drawing or tender sheet and convert the requirement into a practical quotation package.